Improvement in signs



- M. MAY.

Signs.

No; 136,744, PatentedMarchH,1873.

Fig.1, Q

Fig.2.

INVENTOR.

WITNESSES,

AM PHOTU-UTHOGRAPHICCQ MK (osannua's maczsg) of a sectional view of mylantern.

UNITED STATES PATENT OFFICE.

EDGAR M. MAY, OF FOND, DU LAO, WISCONSIN.

p IMPROVEMENTINSIGNS.

Specification forming part of Letters Patent No. 136,744, dated March11, 1:173.

1' 0 all whom it may concern:

Be it known that I, EDGAR M. MAY, of Fond du Lac, in the county of Fonddu Lac and State of Wisconsin, have invented a new and valuableImprovement in Show-Lanterns; and I do hereby declare that the followingis a full, clear, and exact description of the con-- struction andoperation of the same, reference being had to the annexed drawing makinga part of this specification, and to the letters and figures ofreference marked thereon.

Figure 1 of the drawing is a representation Fig. 2 is a top view of thesame with chimney-cover removed.

My invention relates to an improvement in show-lanterns, for advertisingor other purposes; and it consists in a revolving hollow cylindersuspended inside of a lantern, above the lamp, the upper end of thecylinder being closed by a current-wheel, which is acted upon by thecurrent arising from the flame, and the cylinder thus caused to revolvehorizontally about its axis.

In the drawing, A represents a lantern of any suitable construction,having its sides composed of glass, which may be either clear or ground,or slightly colored on the inner side. B is the lamp, outside of whichis a wire frame work, 0, which terminates in a point, 0, near the top ofthe lantern. D is' the revolving hollow cylinder, consisting of a lightframe-work of metal covered with paper or other suitable transparent orsemi-transparent material, on which is represented any suitable designor advertisement or other fignre which it may be desired to exhibit. Theupper end of the cylinder is closed by a currentwheel, E, from thecenter of which projects downward a hollow cone, 6, which is placed overthe point 0, so that the cylinder revolves about its vertical axis whenthe current from the flame of the lamp impinges against the sails orleaves of the wheel E.

What I claim as new, and desire to secure by Letters Patent, is

Ina show-lantern a hollow revolving cylinder suspended inside thelantern and caused to revolve by the current from the lamp,substant-ially as shown and described...

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

EDGAR MASON MAY.

Witnesses I AUGUST GARSTENS, T. S. HENRY.

